Two Colorado women who lost loved ones in battle — Lona Bader (left) and Penni Harrison — hold the "Honor and Remember" flag. They lobbied the Colorado Senate to have the flag flown on Veterans Day and Memorial Day. But lawmakers rejected the idea. (Associated Press)

Robert Mueller’s special counsel investigation into Russian meddling in the 2016 election has cost $6.7 million during the first four and a half months of the probe. Click to see past independent counsel investigations guilty of racking up high bills.